Filling stop-motion.



E. H. RYON. FILLING STOP MOTION.

APPLICATION FILED SEPT-16.1914.

1 1 5 1 ,288. Patented Aug. 24, 1915.

3 SHEETS-SHEET I.

E. H. RYON.

FILLING STOP MOTION.

APPLICATION FILED SEPT-16,1914.

1 1 5 1 ,288. Patented Aug. 24, 1915.

" 3 SHEETS-SHEET Z.

' 3 SHEETS-SHEET 3 E. H. RYON.

FILLING STOP MOTION.

APPLICATION FILED SEPT-16,1914.

Patented Aug. 24, 1915.

COLUMIIA PLANOORAPII CO" wymmm. D. C.

ETPPA I-I. axon, or WALTHAM, nnssacnusnr'rs, ASSIGNOR TO CROMPTON & KNOWLES LOOM WORKS, or Woncns'rnn, MASSACHUSETTS, A CORPORATION or MASSACHU- SETTS.

FILLING STOlE-MOTION.

Specification of Letters Patent.

Patented Au 24, 1915.

To all whom it may concern:

Be it known that I, EPPA H. RYON, acitizen of the United States, residing at W'altharn, in the county of Middlesex and State of Massachusetts, have invented a new and useful Filling Stop-fiction, of which the following is a specification.

This invention relates to a filling stop motion for looms and particularly to a form of side stop motion especially adapted for use on looms of the drop box or shifting shuttle type.

In looms of this type, having drop boxes at one end only, it has been customary to mount the filling stop motion upon that side of the loom opposite to the drop box mechanism. If drop boxes were used upon both sides of the 100111 the side stop motion was considered impracticable and some form of center fork was necessarily substituted. This location of the side stop motion upon the side of the loom opposite the drop boxes was made necessary because portions of filling extended from the selvage to the inactive shuttles in the drop boxes. This filling lay in the path of the filling fork, thus indicating the presence of unbroken filling and preventing the operation of the stopping mech anism, even after the filling in the active shuttle was broken or exhausted.

In plain looms the position of the side stop motion was of no great importance but with the advent of the automatic loom certain objections were found to attach to the location of the stop motion upon the side of the loom opposite to the drop boxes. One objection lay in the fact that the automatic weft replenishing devices were located on that side of the loom. These devices, which were sufiiciently complicated in a singleshuttle loom, became even more complicated in a multi-shuttle loom and their successful application and operation required the use of all of the available space. A; second and more serious objection lay in the fact that a side filling fork of ordinary design, when applied upon the same side of the loom as the weft replenishing mechanism, interfered seriously with the operation of the thread cutter which is an adjunct of many automatic looms. This thread cutter is used to cut the end of filling extending from the edge of the cloth as the substantially exhausted filling carrier is being ejected from the shuttle, and a filling fork located as above defined often carried the filling out of reach of the thread cutter.

With these considerations in mind, it is one of the principal objects of my invention to provide a side filling stop motion which may be successfully operated upon the drop box end of a multi-shuttle loom and which is so constructed that the filling extending to the inactive shuttles will not interfere with the detection of broken or exhausted filling in the active shuttle. With this object in view my invention contemplates the provision of a side stop motion for a drop box loom in which the filling fork is affected only by the condition ofthe filling in the active shuttle. v

In the preferred form of my invention this result is accomplished by withdrawing the filling fork from its indicating position after the indication of the filling and thereafter moving the fork beneath the indicated filling. The fork is then raised with the inserted pick of filling resting upon its upper face. In this condition it does not interfere with the relations between the filling fork and the next inserted pick of filling which is to be indicated.

My invention further consists in certain devices, arrangements and combinations of parts which will be hereinafter described and more specifically pointed out in the appended claims.

A preferred form of my invention is shown in the drawings in which Figure 1 is a front elevation of a portion of the drop box end of a loom and having my improved stop motion attached thereto; Fig. 2 isa partial side elevation of the parts shown in Fig. 1; Fig. 3 is atop plan view of certain portions of the stop motion and a portion of the lay to which it is attached; Fig.4 is a side elevation of the filling fork and other portions, of the stop motion in the positionwhich they occupy when the lay is in its rearmost position, the portions of filling extending to the inactive shuttles being shown as resting upon the upper surface of the fork; Figs. 5 and 6 are a side elevation and a top view respectively of certain of the parts shown in Fig. 4 but in the positions which they occupy when a break occurs in the filling in the active shuttle; Fig. 7 is a side elevation similar to Fig. 5 but taken from the opposite side, and Fig. 8 is a detail View of a portion of the fork grate.

notches 23, which preventthe filling following the forward movement of the fill- Referring to Fig. '1, I have shown a lay 10 mounted upon the usual sword 11 and pivoted upon the rock shaft 12 supported by the-loom side 13. A plurality of drop boxes 14 are vertically movable in the guides 15 and 16 carried by the lay 10. The drop boxes are positioned vertically by a rod 17 which maybe connected to drop-box actuating mechanism of any ordinary type. A portion of a reed is indicated at 18 and is secured upon the lay by the hand rail 19.

The portions of the stop. motion which cooperate directly with the filling comprise a grate 20, and a filling fork 21. The grate 20 (Figs. 6 and 8) is formed as acasting having a plurality of forwardly projecting bars 22 supported thereon, each of which is formed with a series of rearwardly facing from ing fork hereinafter described. 7

In the preferred form of my invention this grate is located in a recess in'the upper side of the lay 10, the notched edgesof the bars 22 being substantially; in the plane of the upper surface of the lay or shuttle race.

' The grate may be secured to thelay by a thelr forward ends to a connecting web 27.

screw 24 extending through a projecting lug 25 on the casting. In the form shown in thedrawings the grate bars are secured at The filling fork consists of a plurality of flat wires or fingers secured in a hub26 and adapted to extend between the grate bars 22 at the rear of the web 27. Thehub 26 is pivotally supported in the upper end of the arm 28 (Figs. 1 and 4) of a bell-crank 29 which is pivoted at 30 to a casting 31 secured to the front side of the lay. The forwardly extending arm 29 of the bell crank 29 is connected to a rod 32. The de- 'annular portion 34 encircling a substantially vertically movable operating rod 35. The rod 35 is guided at its upper endin a projection 36 of the casting 31 and at its lower end is pivotally connected to one arm of a lever 37. The lever 37'is pivoted to the loom frame at 38 and upon its rear end carries a cam roll 39 positioned for actuation by a cam 40 rotatable with the cam shaft 41.

An adjustable collar 42 is mounted upon the operating rod 35 intermediate its ends, in a position to contactwith the annular portion 34 of the rod 32. A spring 43 is also provided which is attached at its lower end to the rod 32 and atits upper end to the castings 31. With these connections, the

spring 43 tends to raise the rods 32 and 35 and to swing the filling fork supporting arm 28 about its pivot 30 until the stop 33 contacts with the casting 31. This represents the extreme upward limit of movement of the rod 32 but the rod 35 continues its upward movement when actuated by the cam 40.

The upper end of the rod 35'is positioned The latch lever 44 is normally held in the position shown in Figs. 5 and 7 by a spring 52 wound upon the stud 45 secured to the casting 31 and having a forwardly extending end positioned beneath a screw or other lateral projection 54 upon the trip. lever 44. When the rod 35 is sufficiently elevated by the cam [40 acting through the lever 37 the upperv end of the rod 35 contacts with the trip lever 44 and moves the dagger-4,6 downward out of position so that it cannot move the block 48 and release the shipper. The filling fork hub 26 is provided at one end with an eccentric crank pin indicated in the drawings as a screw-headed stud 55. This stud is connected by a link 56 to a stud 57 secured in the forward portion of the trip lever 44. When the trip lever 44'is actuated by the operating rod 35 to move thedagger 46 out of'the path of the notch 47, the link 56 acts to rotate the fillingforkhub 26 and to raise the filling fork to the position shown in Fig. 4.

Having described the construction of my improved fillingstop motion, I willnow de scribe in detail the operation of the device. In Fig. 41 have shown the partsv in the position which they occupy whenthe active shuttle is thrownto the left and passes int-o oneof the drop boxes 14. Thejoam roll 39 is at this time held down bythe cam 40, the rod 35 is in raised position, the dagger 46 isdepressed', and the filling fork 21 ispositioned as indicated. The continued rotation of the cam 40 allows the rod 35 to gradually descend after the boxing of the shuttle. The first result of this movement is to allow the rear end of the trip lever 44 to descend thus raising thedagger 46 and at the .same time through the link 56 causing the, filling fork todescend between the rate bars-22 until its downward movementbrings it into position to contact with the filling extending from the selvage to the active shuttle.

If the filling is unbroken the movement of the fork is interrupted and the spring 52 is unable to move the dagger 4:6 into position to cooperate with the notch 4C7. As the lay moves forward the dagger passes below the notch and the shipping mechanism is not released. After the dagger 46 has passed the notch a? in its forward movement, the continued downward movement of the operating rod brings the collar 42 into contact with the annular portion 3% of the rod 32. The weight of the rod 35 is ordinarily sufficient to overcome the resistance of the spring43 and to move the rod 82 down ward. An additional spring may, of course, be provided, if desirable, to insure the uninterrupted downward movement of the rods.

As the rod 82 is carried downward with the rod 35, the filling fork supporting arm 28 is swung about its pivot 30 and the filling fork is moved forward into the position shown in Fig. 2. If the fork has been heretofore resting upon the inserted filling, its forward movement relative to the lay is sufficient to draw the ends of the fork forward beyond the filling, thus allowing the fork to complete its downward movement between the grate bars 22. The rod 35 is thereafter forced upward by the action of the cam 40, permitting the spring -13 to raise the rod 82 and swing the bell crank 29 and arm 28 about the pivot 30. The filling fork is thereby given a'substantially linear rearward movement beneath the grate bar 20 until it extends beneath the inserted filling. The end of the rod 35 then contacts with the trip lever if and through the link 56 raises the filling fork to its first position as shown in Fig. 4:. This latter movement, however, does not occur until after the flight of a shuttle to the right.

If a change in the active shuttle has 0ccurred, the forward and rearward movement of the fork and its subsequent upward movement transfers the last inserted filling to the upper side of the fork, as indicated in Fig. 4-. There is thus no longer a pick of filling lying upon the grate even though the active shuttle has been changed, and the fork is free to indicate the presence or absence of filling after the next pick has been inserted.

If no change in shuttles has occurred, the parts operate in the same manner, but as there is no filling extending from the selvage, none is transferred to the upper side of the fork. If the filling is broken or exhausted the fork passes directly downward through the grate, as shown in Figs. 5 and 6, permitting the dagger e6 to move into position to actuate the block 48 and stop the loom in the usual way.

For the accomplishment of certain important objects of my invention, it is merely necessary that the fork and grate be given a relative substantially horizontal separating movement during the engagement of the fork with the filling, it being immaterial for these purposes which element performs the actual movement.

While I have described my improved stop motion as possessing special advantages when used upon a drop boX loom, it will be evident that it possesses novelty and utility aside from this particular use and that to a certain extent its advantages may be secured by using it upon either end of either a plain or adrop boX loom.

Having thus described my invention it will be evident that many changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope thereof as expressed in the claims, and I do not wish to be limited to the details herein described, but

What I do claim is 1. In a loom, in combination, a lay, a filling stop motion mounted on the lay, said stop motion comprising a grate and a filling fork, means to move said fork toward and from said grate, and means to cause an additional relative movement of said fork and grate in a different direction, said latter movement being effective to clear the fork from the inserted filling.

:2. In a loom, in combination, a lay, a stop motion mounted thereon, and operating devices therefor, said stop motion comprising a substantially horizontal grate, a fork mounted upon a pivot to swing downwardly through said grate, means to swing said fork downward, and means to thereafter move said pivot forward relatively to said lay.

3. In a loom, in combination, a lay, a filling stop motion mounted on said lay, and means to operate said stop motion, said stop motion comprising a grate and a filling fork, said fork havin a swinging movement toward said grate, and having an additional substantially linear movement parallel to said grate to clear the last inserted pick of filling before the succeeding pick is inserted.

4. In a loom, in combination a lay, a filling stop motion mounted on said lay, and means to operate said stop motion, said stop motion comprising a grate lying in the upper surface of said lay, a filling fork mounted to operate about a pivot on the upper end of a swinging arm, said arm being supported on said lay, and operating means effective to swing the fork downward through the grate and to thereafter move the pivot of said fork to free the fork from the inserted filling.

5. In a loom, in combination a lay, a stop motion mounted on said lay, and operating devices therefor, said stop motion comprising a grate and a filling fork movable through said grate, and said operating the operation ofthe fork.

6. In a loom, in combination a plurality of shifting shuttle boxes, shuttles in said boxes, a filling stop motionon the drop box end of the loom, and means to operate said stop motion, said stop motion comprising a grate, and a filling fork movable through said grate, and said. operating means comprising devices effective to withdraw the fork from above an inserted pick offilling and to insert the fork beneath said filling whereby the filling extending to the inactive shuttles will not effect the operation of the fork.

'7. In a loom, in combination, a grate, a filling fork cooperating therewith, said fork being pivotally supported at the opposite side of the grate from that on which the filling threads'pass, means to move the free end of said fork through said grate to an inclined position and to thereafter move the fork back through sald grate, the latter bemg the detecting movement, and means to give said fork an additional movement substantially in the plane of said grate.

8. In a loom, in combination, a grate, a

filling fork, means to give said fork a detecting movement, means to move said fork substantially in the plane of the grate to free it from an inserted filling thread, and means to thereafter return said fork to initial position.

9. In a loom, in combination, a filling fork, means to yieldingly move said fork in a direction to contact with an inserted filling thread, means to move said fork to a position beneath said thread, and means to thereafter restore said fork to initial positionr 1 I 10. In a loom, in combination, a filling fork, means to give said forka yielding de and a cam effective to control the several operating means. 7

12. In a loom, 1n combination, a filling fork, means to give said fork a yielding de- 7 tecting movement, means to give said fork a clearing movement, means to thereafter yieldingly return said fork, means to positively restore said fork to initial position, and an adjustable stop to limit the return movement. 7 r V 18. In a loom, in combination, a lay, a filling stop motion mounted on the lay, said stop motion comprising a grate and a filling fork, and means to cause relative movement of said fork and grateveifective to clear the fork from the inserted filling, said grate having rearwardly facing teeth upon its up per surface preventing forward movement of the filling relative to said grate.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses. r

EPPA H. RYON.

Vitnesses CHAS. T. IIA-WLEY, J. B. 'SYME.

- Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents.

Washington, D. S. 

